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TYPE WRITING MACHINE.

11m-444,490'. Patented Jan. 13, 1891.

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E. M. HAMILTON. TYPE WRITING MACHINE.

N. 444,119.0. Pa'euted Jan. 13, 1891.

` UNITED STATES PATENT OFFICE.

EMERY M. HAMILTON, OE NEW YORK, N. Y., AssIGNoR, EY MEsNE AssIeN.- MENTS, To THE NORTH AMERICAN MACHINE COMPANY, OE WEST VIR- GINIA. Y

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 444,490, dated January 13, 1891. Application filed February 25, 1890. Serial No. {541,687}l (No model.)

To ctZZ whom it may concern: l common to all the type-bars of the series. 5o

Be it known that I, EMERY M. HAMILTON, The type-bars are actuated by key-levers ct,

of the city, county, and State of New York, a provided, respectively, with finger-keys a',

citizen of the United States, have invented arranged in the usual manner.

5 certain new and useful Improvements in B is the papercarriage, carrying the platen Type-I/Yriting Machines, of which the follow B', journaled therein, and said carriage is 55 ing is a full, clear, and exact description, refadapted to traverse tracks or Ways b, which erence being had to the accompanying drawextend across the machine, so that the platen ings, forming part of this specification, Will be carried over the face of the type at Io My invention relates to that class of typethe common printing-point in the manner Writing machines in which the printing-types custolnary in machines of this class. The 6o are arranged in a series upon vibratory typel feed or step-by-step movement of the carriage bars or levers, and are adapted to strike or over the type-system A on its Ways may be print at a point common to all the type of the accomplished by any of the known devices I 5 series, and in which the platen is mounted in employed in machines of this description for and upon acarriage which is adapted to travthis purpose-as, for example, by the devices 6 5 erse ways extending across the ImaOhine, illustrated at e-and which do not need furwhereby the platen may be carried over the ther description herein, as they are well known face of the type at the printing-point to effect and form no part of my present invention.

2o the spacing between the letters printed on the In carrying out my present invention I suppaper carried by the platen. port the carriage ways or tracks b on suitable 7o My invention consists in the combination,` pillars in the machine, on which pillars the with the printing-type of a type-writing masaid Ways have play vertically over the printchine and the paper-carriage carrying the ing-type, as hereinafter set forth, and I pro- 25 platen on-which the type print at a common vide springs seated in said pillars, which printing-point, of Ways or tracks for said pasprings bear against and serve to sustain and 7 5 per-carriage spring-seated in and adapted to tend to thrust upward on the pillars, the said have 'vertical play upon supporting-pillars Ways, and the carriage thereon, and I also and set-screws adapted to control the seatprovide set-screws engaging said ways and 3o springs in said pillars, substantially as hereworking in said pillars and adapted to coninafter set forth, whereby the paper-carriage trol the springs at the wayseats thereon. 8o and its platen may be given a fixed adjust- The following-described arrangement of deability in the machine in the direction pervices is desirably employed for this purpose. pendicular to the pla-ne of the face of the At C C are shown pillars which rise from 3 5 printing-type when said type is in the act of and are fixed upon the base or standard of striking the platen. the machine, which may be accomplished, as 8 5 Figurel is aplan of a type-Writing machine shown in Fig. 4, by means of a screw c passcontaining my invention. Fig. 2 is an ening through the base D into the pillar, While larged view in plan of the pillars and their the pillar may have a shoulder c, adapted to 4o attached devices upon which the carriage is be seated-upon a disk D', said disk being the adjustably mounted. in accordance with my support in the machine for the type-bar sys- 9o invention. Fig. 3 is a rear elevation of the tem. A pin or stud d, set in the disk D', may same. Fig. 4 is a vertical central section of be employed to enter a corresponding recess one of the pillars and its attached devices, c2 in the shoulder on the pillar to assist in 45 and Fig. 5 is a side elevation of the same. holding the pillar in position. These pillars In the machine illustrated the type are carare located in the machine on opposite edges 95 ried by vibratory type-bars arranged in a of the type-bar system, as shown. circular series, as shown at A, and adapted C C are bars, each of which has on its unto strike or print at a printingpoint which is der face or side an arm c3, extending at a right y angle to the bar, and one of said bars isseaicd in and upon cach ot said pillars by means of its said arm c3, the pillars being longitudinally recessed,as at c", to correspond to and permit the playtherein ot the arm, while the top face of cach pillar is preferably slotted, the slots being parallel to each other in said pillars laterally, as at c5, to permit the seating of the bars C loosely in said slots in parallel position relatively to each other, as shown. To the rearward ends of the bars C the yokepicces or supports E for the carriage ways or tracks h are hinged-as, for example, by screws c passing transversely through lugs e on the ends of said yokes and into threaded recesses in the bars, as shown. rlhe ways Z) may be in the form ol rods, as shown, and fixed in corrcspondin g saddles c2 on the yokes E. The hinging ot' the yokes E to the bars C permits the paper-carriage to be turned upward and backward on its supports to expose the line ot printing, as is usual in these machines. The forward ends of the bars C may be provided with bulliers c", of elastic or yielding material, to receive the front track or way of the carriage when the same is dropped or turned down on its hinge into normal position.

At c7 are shown set-screws, one ot which engages each bar C as by passing vertically through it, as shown, and into a correspondingly-threadcd aperture cS in the top tace of cach pillar. This screw cT is preferably located in each bar to one side, and desirably forward ofthe arm with its seating-aperture cS in each pillar located therein eccentricall y to the aperture c", in which said arm c3 has play.

At c" are shown springs, which are preferably in the form of coil-springs, and which are seated and have play, respectively, in the recesses c4 in the pillars and are adapted to bear against the arms c therein, which arms c3 are desirably recessed, as at c, to receive the springs, as shown. The springs c should possess a resiliency when flexed which will renderthem capable of overcoming the weight of the bars C and the ways and paper-carriage supported thereon, so that when they are free to act they will tend-to force the arms c upward in their described seats in the pillars and so lift the bars C and the carriage and its ways. Now it is evident that when the set-screws cT are turned upward in the pillars the springs c thus released will force the bars C upward by their action on the arms c, and that when said set-screws are turned downward the bars C will be forced downward 011 the pillars, the springs c" being thereby Iiexed or compressed in the said recesses, and that, the springs c possessing the requisite resiliency, as set forth, the papercarriage and the platen and the carriage-ways carried by the bars C will be lifted or depressed on tlre pillars, thereby giving to the platen a fixed adjustment vertically over the printing-line or in the direction perpendicular to the plane of the printing-face ot'a type when in thc act ot printing ou the platen. 'lhe purpose of this vertical adj ust-ment of the platen over the types is to enable the platen to be readily and quickly brought to a position on the machine relatively to the entire type series in which a uniformity of desirable and proper impressions shall be effected by all and every one of the types on the platen at the common printing-point of the type series.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. In a type-writing machine, the combination, with the printing-type adapted to print at a common printing-point and a paper-carriage carrying the platen and adapted to move therewith over and across said printing-point of the type, of ways or tracks for said carriage seated in and adapted to have vertical play upon supporting-pillars, springs seated in said pillars and bearing against said ways or tracks, and set-screws engaging said ways or tracks and working in and adapted to control the scat-springs in said pillars, substantially as and for the purpose set forth.

2. In a type-writing machine, the combination, with the printing-type and the papercarriage carrying the platen upon which the type are adapted to print at acommon'priuting-point, and which carriage is adapted to lnove on ways or tracks over and across said printing-point of said type, of pillars C C', recessed longitudinally at c", bars C C', supporting' said carriage-ways and mounted to play vertically on said pillars by arms c, working in said recesses, springs c9 in said recesses and bearing against said arms, and set-screws el, engaging said bars and working in said pillars, substantially as and for the purpose set forth.

In a type-writing machine, the combination, with the printing-type and paper-carriage carrying the platen uponwhichthe type are adapted to print at a common printingpoint, and which carriage is adapted to move on ways or tracks over and across said printin g-point of the type, of pillars C C, laterally slotted on their top faces at c5 and recessed longitudinally at c, bars C' C', supporting said carriage-ways and adapted to lit in said top face slot and provided with arms c, playing in said recesses in said pillars, springs c" in said recesses, bearing against said arms, and set-screws c7, engaging said bars and working in said pillars, substantially as and for the purpose set forth.

l. In a type-writing machine, the co1nbination, with the printingtype adapted to print at a common printing-point and the papercarriage carrying the platen and adapted to move on ways or tracks over and across said printing-point, of bars C C', supportingsaid carriage-ways and each provided with an arm c, recessed endwise at cl", pillars lC C, recessed at c to receive and permit play therein of the bar-arms, springs c, seated iu said pillar-recesses and engaging and bearing against said bar-arms in the recessed ends, and set- IOO IIO

which have arms c3, playing in said recessed pillars, springs 09, seated in said recessed pillars and bearing against said bar-arms, and set-screws c7, engaging said bars and Working r 5 in said pillars, substantially as and for the purpose set forth.

EMERY M. HAMILTON.

Witnesses:

E. C. COOKE, E. M. DAWSON. 

